EP0278795A1 - Firearm percussion device for firing cartridges of two different calibres - Google Patents

Firearm percussion device for firing cartridges of two different calibres Download PDF

Info

Publication number
EP0278795A1
EP0278795A1 EP88400023A EP88400023A EP0278795A1 EP 0278795 A1 EP0278795 A1 EP 0278795A1 EP 88400023 A EP88400023 A EP 88400023A EP 88400023 A EP88400023 A EP 88400023A EP 0278795 A1 EP0278795 A1 EP 0278795A1
Authority
EP
European Patent Office
Prior art keywords
percussion
striker
seat
percussion device
cylindrical seat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88400023A
Other languages
German (de)
French (fr)
Other versions
EP0278795B1 (en
Inventor
Jean Beltzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Matra Manurhin Defense
Original Assignee
Matra Manurhin Defense
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matra Manurhin Defense filed Critical Matra Manurhin Defense
Priority to AT88400023T priority Critical patent/ATE62544T1/en
Publication of EP0278795A1 publication Critical patent/EP0278795A1/en
Application granted granted Critical
Publication of EP0278795B1 publication Critical patent/EP0278795B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/13—Percussion or firing pins, i.e. fixed or slidably-mounted striker elements; Mountings therefor

Definitions

  • the present invention relates to a percussion device for a firearm, in particular for revolvers or pistols, making it possible to adapt to two ammunition of different calibers, and more particularly to two ammunition, one of which is with central percussion and the other is with annular percussion.
  • the change of ammunition implies either a change of the barrel itself for the weapons with interchangeable barrel, or the use of a reducing tube, introduced in the barrel of origin and usually fixed with a stirrup.
  • Mechanisms of this type have many drawbacks, the most serious of which is the risk of blocking the barrel: in fact, upon percussion, the primer or the base of the casing can penetrate the bent light by swelling , this swelling then risking blocking the rotation of the barrel. In addition, such mechanisms have a complex structure involving delicate assembly operations.
  • the object of the invention is to propose a percussion device for a firearm making it possible to pass easily from a central percussion to an annular percussion, the structure of which is simple and offers great reliability.
  • the invention aims to propose a percussion device mounted on the carcass of the revolver, and authorizing the use of conventional barrels with reduced axial rectilinear chambers.
  • the invention aims to propose a percussion device mounted on the breech of the revolver, and making it possible to keep the same breech for the two types of ammunition used.
  • a percussion device for a firearm in particular for a revolver or pistol, making it possible to adapt to two ammunition of different calibers, one of which is with central percussion and the other is annular percussion, characterized in that it comprises: - A cylindrical seat rotatably mounted in a bore of the carcass or the breech of the weapon, and whose axis of rotation is parallel to the axis of the barrel of said weapon; - A striker which can slide in a stepped cylindrical recess of the cylindrical seat, the axis of which is parallel to the axis of rotation of said cylindrical seat but offset with respect thereto; a stop member mounted transversely in the cylindrical seat, and against which the striker is held in abutment in the retracted position by an elastic means such as a spring or the like, a locking member mounted transversely in the carcass or the breech of the weapon, and capable of locking the cylindrical seat in one or other of two positions thereof, corresponding to a central percussion or to a annular
  • the cylindrical seat has a transverse hole, the central part of which opens into the stepped cylindrical recess of said seat, said transverse hole serving to receive the stop member of the striker; in particular, the stop member is a pin passing through a notch of the striker.
  • the cylindrical seat has a peripheral groove, a part of which opens into the stepped cylindrical recess of said seat, said peripheral groove serving to receive the stop member of the striker.
  • the stop member is an elastic ring, a portion of which passes through a notch of the striker; in particular, the elastic rod has substantially the shape of a horseshoe, with a straight central branch passing through the notch of the striker.
  • the striker notch has a bottom extending to the rear end of the striker, or a rear edge defining a bottom, the length is slightly greater than the axial stroke of said striker.
  • the striker comprises a cylindrical main body extending forward towards a percussion rod, the notch of the striker being formed on said main body; in particular, a spring surrounds the portion of the percussion rod of the striker which is inside the enlarged part of the stepped cylindrical recess of the seat.
  • the locking member of the cylindrical seat is a screw received in a thread passing through the carcass or the breech of the weapon, and the end of which bears against the seat for locking of said seat in one of the two positions thereof.
  • the cylindrical seat presents externally two flat lateral facets, against one or the other of which the head of a flat head screw can be applied, or even two conical recesses, in one or the other of which can be received the head of a needle screw.
  • the front end of the cylindrical seat is a shoulder received in an associated circular recess formed in the carcass or the breech of the weapon; in particular, the shoulder has two peripheral notches to allow the rotation of the cylindrical seat using an associated tool.
  • a revolver comprising a carcass 1, a sleeve or sheath 2, and a barrel 3, the rear end of which is screwed onto the carcass 1.
  • This is a revolver of the interchangeable barrel type, that is to say one for which a set of several barrels and associated barrels is provided making it possible to modify the caliber and / or the length of the barrel, but it goes without saying that the invention does is by no means limited to this type of firearm as will become clear from the remainder of the description.
  • the revolver is equipped with a barrel 4, the axial chambers 5 of which receive ammunition such as the bullet 6 of the central percussion type; it could for example be ammunition of 7.65 mm or 9 mm caliber.
  • the percussion device also includes a striker 11 capable of sliding in a stepped cylindrical recess 12 of the seat 7; the axis 13 of the striker 11 is parallel to the axis of rotation 9 of the cylindrical seat, but it is offset with respect thereto.
  • the striker 11 comprises a cylindrical main body 14 extending forwardly by a percussion rod 15.
  • a stop member which is here a cylindrical pin 16 mounted transversely in the cylindrical seat 7, stop member against which the striker 11 is held in abutment in the retracted position (that shown in FIGS.
  • the pin 16 is housed in a transverse hole 18, the central part of which opens into the stepped cylindrical recess 12 of the seat 7, as is better visible in the detail of FIG. 3A.
  • the pin 16 passes through a notch 19 of the striker 11, said notch having here a bottom extending to the rear end of the striker. It goes without saying that one could provide a notch having a rear edge defining a bottom whose length is slightly greater than the axial stroke of the striker but, taking into account the space resulting from the cylindrical stop pin 16, it is simpler to provide a notch bottom opening in the manner of a flat, as shown in Figures 1A and 1B. So, the striker 11 is, in its natural position, in abutment against the pin 16; at the time of percussion, the striker leaves its support, and the percussion rod 15 strikes the base of the ammunition projecting from the front face of the cylindrical seat 7.
  • the seat of the percussion device can occupy two basic positions, one being assigned to central percussion ( Figure 1A), while the other is assigned to annular percussion ( Figure 1B).
  • Figure 1A central percussion
  • Figure 1B annular percussion
  • the cylindrical seat 7 has two planar lateral facets 20 on the outside, against one or the other of which can be applied the head of a flat head screw 21.
  • the front end of the cylindrical seat 7 is in the form of a shoulder 22 received in an associated circular recess formed in the carcass 1 of the weapon. It is then interesting to provide that the shoulder 22 has two peripheral notches 23, only visible in FIGS. 2A and 2B, to allow the rotation of the cylindrical seat 7 using an associated tool, such as than a lug wrench.
  • FIGS. 4A, 5A and 6A illustrate such possible variants.
  • the percussion device thus comprises a cylindrical seat 24 which differs from the seat 7 in that it comprises a peripheral groove 25, a part of which opens into the stepped cylindrical recess 30 of said seat, said peripheral groove serving to receive the abutment member 26 of the striker, which here is an elastic rod, a central portion of which passes through a notch 27 of the striker 28.
  • abutment member 26 of the striker which here is an elastic rod, a central portion of which passes through a notch 27 of the striker 28.
  • the elastic rod 26 has substantially the shape of an iron horse, with a straight central branch 29 passing through the notch 27 of the striker 28.
  • the notch 27 of the striker 28 has a rear edge 31 (FIG. 6A) defining a bottom of notch whose length is slightly greater than the axial stroke of said striker.
  • the striker 28 comprises a main body 32 cylindrical, extending forwardly by a percussion rod 33, the notch 27 of said striker being formed on said main body.
  • the cylindrical seat 24 has two conical recesses 34 on the outside (only one shown here), in one or the other of which can be received the head of a needle screw 35. It is preferable that these reception cones are provided sufficiently distant from the groove receiving the elastic ring, for example towards the middle of the cylindrical seat. Such a variant makes it possible to avoid the machining of lateral facets on the cylindrical seat.
  • FIGS. 4A, 5A and 6A illustrate a revolver whose percussion device is in position corresponding to a central percussion.
  • the operator can switch to annular percussion by dismantling the barrel and the barrel, by unscrewing the needle screw 35, by turning the cylindrical seat 24 by 180 °. by means of a lug wrench, by tightening the screw 35, and finally by reassembling the barrel and the barrel corresponding to the new caliber.
  • the invention applies to weapons with interchangeable barrel or using reducing tubes, but is in no way limited to barrel revolvers.
  • the percussion device of the invention finds an extremely advantageous application in the equipment of pistols, as will be described with reference to FIGS. 7A and 8A, and 7B and 8B.
  • a pistol breech 36 with a carcass 37 at the front part inside which is disposed the barrel 38 adapted for ammunition with central percussion 39.
  • a cylindrical seat 40 rotatably mounted in a bore 41 of the breech of the pistol and whose axis of rotation 42 is parallel to the axis of the barrel of said pistol.
  • a striker 43 which can slide in a stepped cylindrical recess 44 of the cylindrical seat 40, the axis 45 of which is parallel to the axis of rotation 42 of said seat but offset with respect thereto.
  • a stop member 46 mounted transversely in the cylindrical seat 40, and against which the striker 43 is held in abutment in the retracted position by a spring 47.
  • a locking member 48 mounted transversely in the breech of the weapon, and capable of locking the cylindrical seat 40 in one or the other of two positions thereof, corresponding to a central percussion or to an annular percussion.
  • the member 48 is here a needle screw cooperating with conical recesses formed on the outer surface of the cylindrical seat 40, but it goes without saying that one could provide a flat head screw cooperating with one or the other. 'other of two flat side facets formed externally on the cylindrical seat.
  • the main body of the striker 43 has a notch 49 through which the transverse pin 46 passes, which notch has a rear edge defining a bottom whose length is slightly greater than the axial stroke of said striker. It goes without saying that one could also provide a notch having a bottom extending to the rear end of the striker, as illustrated in FIGS. 1A and 1B, but it is preferable to use a non-opening notch for better sealing and better mechanical resistance of the part, knowing that the striker is, for a pistol, significantly longer than for a revolver.

Abstract

The invention relates to a percussion device making it possible to adapt to two munitions of different calibres, of which one has central percussion and the other annular percussion. According to the invention, the device comprises: - a cylindrical seat (7) mounted rotatably in the body (1) of the firearm; - a striker (11) which can slide in a stepped recess of the cylindrical seat (7) and the axis (13) of which is parallel to the axis of rotation (9) of the cylindrical seat, but offset in relation to this; - a transverse stop pin (16) which is mounted in the cylindrical seat (7) and against which the striker (11) bears by means of a spring (17); - a locking member mounted transversely in the body and capable of locking the cylindrical seat (7) in either one of the two positions of the latter. The invention is used particularly for percussion devices on revolvers and pistols with an interchangeable barrel. <IMAGE>

Description

La présente invention concerne un dispositif de percussion pour arme à feu, en particulier pour revolvers ou pistolets, permettant de s'adapter à deux munitions de calibres différents, et plus spécialement à deux munitions dont l'une est à percussion centrale et l'autre est à per­cussion annulaire.The present invention relates to a percussion device for a firearm, in particular for revolvers or pistols, making it possible to adapt to two ammunition of different calibers, and more particularly to two ammunition, one of which is with central percussion and the other is with annular percussion.

Le problème de la percussion ne se pose pas lors­qu'il s'agit de deux munitions à percussion centrale, puisque le percuteur peut dans ce cas conserver la même position quel que soit le type de munition employé.The problem of percussion does not arise in the case of two ammunition with central percussion, since the striker can in this case keep the same position regardless of the type of ammunition used.

Il en va tout autrement lorsque l'on souhaite utiliser avec la même arme des munitions de plus petit calibre, qui soient à percussion annulaire, telles que des munitions de calibre 22 Long Rifle (environ 5,5 mm). On pourrait naturellement esquiver la difficulté en utili­sant deux armes différentes, mais il est bien connu que le tireur préfère de beaucoup utiliser une seule arme pour conserver les mêmes sensations.It is quite different when one wishes to use with the same weapon munitions of smaller caliber, which are annular percussion, such as ammunition of caliber 22 Long Rifle (approximately 5.5 mm). One could naturally dodge the difficulty by using two different weapons, but it is well known that the shooter very much prefers to use a single weapon to keep the same sensations.

Pour adapter la partie canon, en particulier avec les revolvers, le changement de munition implique soit un changement du canon lui-même pour les armes à canon inter­changeable , soit l'utilisation d'un tube réducteur, in­troduit dans le canon d'origine et en général fixé à l'aide d'un étrier.To adapt the barrel part, in particular with revolvers, the change of ammunition implies either a change of the barrel itself for the weapons with interchangeable barrel, or the use of a reducing tube, introduced in the barrel of origin and usually fixed with a stirrup.

L'adaptation des autres composants de l'arme pour passer à une mode de percussion annulaire est plus comple­xe, car il faut adapter le dispositif de percussion et/ou le barillet du revolver.The adaptation of the other components of the weapon to switch to an annular percussion mode is more complex, because it is necessary to adapt the percussion device and / or the barrel of the revolver.

Plusieurs solutions ont été proposées pour adap­ter seulement le barillet, afin de conserver le même dis­positif de percussion, mais une telle hypothèse aboutit à des réalisations complexes et en général peu satisfai­santes.Several solutions have been proposed to adapt only the barrel, in order to keep the same percussion device, but such an assumption results in complex and generally unsatisfactory embodiments.

On a ainsi proposé d'utiliser une pièce spéciale pour la percussion annulaire, sous forme d'un morceau de barillet à percuteurs coulissants, ledit morceau de baril­let étant monté en arrière de l'éjecteur (voir par exemple le brevet américain No 2 150 914) ; chaque percuteur cou­lissant présente en son extrémité avant un ergot excentré permettant de réaliser une percussion annulaire. La pré­sence d'un tel morceau amovible, qui de plus tombe lors de l'éjection des douilles, est peu satisfaisante, tant au niveau du coût de fabrication qu'au niveau de l'utilisa­tion pratique.A special room There was thus proposed to use for the rimfire form of a piece of cylinder sliding impactors, said barrel piece being mounted in rear of the ejector (see, e.g. U.S. Patent No. 2 150 914); each sliding striker has an eccentric lug at its front end for annular percussion. The presence of such a removable piece, which moreover falls during the ejection of the sockets, is unsatisfactory, both in terms of manufacturing cost and in terms of practical use.

On a aussi proposé des systèmes apparentés avec fausse cartouche (cartouche réductrice) et bloc de percus­sion incorporé, mais de tels systèmes présentent sensible­ment les mêmes inconvénients que ceux qui viennent d'être mentionnés.Related systems have also been proposed with a false cartridge (reducing cartridge) and incorporated percussion block, but such systems have substantially the same disadvantages as those which have just been mentioned.

On a également proposé d'utiliser un barillet spécial à chambres coudées de plus petit diamètre (voir par exemple la demande de brevet français No 2 505 476) : l'inclinaison de la partie arrière des chambres (de 4 à 5 degrés) permet de présenter automatiquement le culot de la munition en position de percussion annulaire. Cependant, outre l'utilisation d'un cavalier spécial pour son montage, l'usinage d'un tel barillet est difficile et implique un surcoût de fabrication non négligeable.It has also been proposed to use a special barrel smaller diameter bent chambers (see, e.g., French patent application No. 2,505,476): the inclination of the rear part of the room (4 to 5 degrees) allows automatically present the base of the ammunition in the annular impact position. However, in addition to the use of a special jumper for its mounting, the machining of such a barrel is difficult and involves a non-negligible manufacturing cost.

D'autres solutions ont été proposées pour adapter le barillet en utilisant un bloc arrière de barillet dont les chambres sont axiales mais de plus faible diamètre, grâce à un percuteur oscillant à deux positions associé à une assise à deux passages (voir par exemple le brevet américain No 2 976 638). Le percuteur proprement dit peut tourner autour d'un axe transversal, afin d'occuper soit une position haute pour la percussion centrale, soit une position basse pour la percussion annulaire. Une telle conception implique la réalisation de pièces de structure complexe, dont le coût de fabrication est élevé, et dont la fiabilité est peu satisfaisante en raison des nombreuses tolérances de fabrication.Other solutions have been proposed for adapting the barrel using a rear barrel block whose chambers are axial but of smaller diameter, by virtue of an oscillating striker with two positions associated with a seat with two passages (see for example the patent US No. 2,976,638). The striker itself can rotate around a transverse axis, in order to occupy either a high position for the central percussion, or a low position for the annular percussion. Such a design involves the production of parts of complex structure, the manufacturing cost of which is high, and the reliability of which is unsatisfactory due to the numerous manufacturing tolerances.

On a également proposé d'utiliser un mécanisme à percuteur monté tounant dans la carcasse du revolver, cette carcasse étant de conception spéciale pour permettre le mouvement de la pointe du percuteur (voir par exemple le brevet américain No 3 050 894). Dans ce mécanisme, le corps du percuteur est logé dans la carcasse, et est lui-même positionné et verrouillé soit en position de percussion centrale, soit en position de percussion annulaire. Cette disposition implique la présence d'une lumière cintrée (quart de cercle) dans la carcasse pour laisser passer la pointe du percuteur : en faisant tourner le corps de percuteur, la pointe est ainsi amenée dans l'une ou l'autre des deux positions désirées. Les mécanismes de ce type présentent de nombreux inconvénients, dont le plus grave est celui d'un risque de blocage du barillet : en effet, lors de la percussion, l'amorce ou le culot de la douille peut pénétrer dans la lumière cintrée par gonflement, ce gonflement risquant alors de bloquer la rotation du barillet. De plus, de tels mécanismes présentent une structure complexe impliquant des opérations de montage délicates.It has also been proposed to use a mounted striker mechanism tounant in the frame of the revolver, the carcass being specially designed to allow movement of the tip of the firing pin (see, e.g. U.S. Patent No. 3,050,894). In this mechanism, the striker body is housed in the carcass, and is itself positioned and locked either in the central percussion position, or in the annular percussion position. This arrangement implies the presence of a curved light (quarter circle) in the carcass to allow the tip of the striker to pass: by rotating the striker body, the tip is thus brought into one or the other of the two positions. desired. Mechanisms of this type have many drawbacks, the most serious of which is the risk of blocking the barrel: in fact, upon percussion, the primer or the base of the casing can penetrate the bent light by swelling , this swelling then risking blocking the rotation of the barrel. In addition, such mechanisms have a complex structure involving delicate assembly operations.

L'état de la technique de l'invention peut être également complété en mentionnant le brevet américain No 3 170 261, dans lequel est décrit un mécanisme permettant au choix un tir unique ou simultané (trois munitions) : dans ce mécanisme, un téton solidaire du barillet fait tourner une assise cylindrique, pour amener le percuteur dans une position angulaire telle que son contour produise un tir unique ou simultané.The prior art of the invention can also be completed by mentioning U.S. Patent No. 3,170,261, wherein is described a mechanism for either a single or simultaneous firing (three ammunition): In this mechanism, a stud integral with the barrel rotates a cylindrical seat, to bring the striker into an angular position such that its outline produces a single or simultaneous shot.

Enfin, lorsqu'il s'agit d'un pistolet, on procède traditionnel­lement au changement de la culasse, du canon et du ressort récupérateur. On propose ainsi un kit de conversion complet, dont le coût est relativement élevé en raison du nombre des pièces à changer, la plus onéreuse étant la culasse.Finally, when it comes to a pistol, the cylinder head, barrel and recuperating spring are traditionally changed. We therefore offer a complete conversion kit, the cost of which is relatively high due to the number of parts to be changed, the most expensive being the cylinder head.

L'arrière-plan technologique de l'invention peut être enfin complété en mentionnant les brevets américains No 2 127 318, No 1 849 982 No 3 049 977 et No 1 373 888, les brevets allemands No 518 372 et No 298 815, et le brevet suisse No 534 854.The technological background of the invention can finally be completed by mentioning the US patents No. 2,127,318, No. 1,849,982 No. 3,049,977 and No. 1,373,888, German Patent No. 518,372 and No. 298,815 and Swiss patent No. 534,854.

L'invention a pour objet de proposer un disposi­tif de percussion pour arme à feu permettant de passer aisément d'une percussion centrale à une percussion annu­laire, dont la structure soit simple et offre une grande fiabilité.The object of the invention is to propose a percussion device for a firearm making it possible to pass easily from a central percussion to an annular percussion, the structure of which is simple and offers great reliability.

Dans le cas de revolvers, l'invention vise à proposer un dispositif de percussion monté sur la carcasse du revolver, et autorisant l'utilisation de barillets clas­siques à chambres axiales réduites rectilignes.In the case of revolvers, the invention aims to propose a percussion device mounted on the carcass of the revolver, and authorizing the use of conventional barrels with reduced axial rectilinear chambers.

Dans le cas de pistolets, l'invention vise à pro­poser un dispositif de percussion monté sur la culasse du revolver, et permettant de conserver la même culasse pour les deux types de munitions utilisés.In the case of pistols, the invention aims to propose a percussion device mounted on the breech of the revolver, and making it possible to keep the same breech for the two types of ammunition used.

Il s'agit plus particulièrement d'un dispositif de percussion pour arme à feu, en particulier pour revol­ver ou pistolet, permettant de s'adapter à deux munitions de calibres différents, dont l'une est à percussion cen­trale et l'autre est à percussion annulaire, caractérisé par le fait qu'il comporte :
- une assise cylindrique montée tournante dans un alésage de la carcasse ou de la culasse de l'arme, et dont l'axe de rotation est parallèle à l'axe du canon de ladite arme ;
- un percuteur pouvant coulisser dans un évidement cylin­drique étagé de l'assise cylindrique, dont l'axe est parallèle à l'axe de rotation de ladite assise cylindri­que mais décalé par rapport à celui-ci ;
- un organe de butée monté transversalement dans l'assise cylindrique, et contre lequel le percuteur est maintenu en appui en position rétractée par un moyen élastique tel que ressort ou analogue,
- un organe de verrouillage monté transversalement dans la carcasse ou la culasse de l'arme, et susceptible de verrouiller l'assise cylindrique dans l'une ou l'autre de deux positions de celle-ci, correspondant à une per­cussion centrale ou à une percussion annulaire.It is more particularly a percussion device for a firearm, in particular for a revolver or pistol, making it possible to adapt to two ammunition of different calibers, one of which is with central percussion and the other is annular percussion, characterized in that it comprises:
- A cylindrical seat rotatably mounted in a bore of the carcass or the breech of the weapon, and whose axis of rotation is parallel to the axis of the barrel of said weapon;
- A striker which can slide in a stepped cylindrical recess of the cylindrical seat, the axis of which is parallel to the axis of rotation of said cylindrical seat but offset with respect thereto;
a stop member mounted transversely in the cylindrical seat, and against which the striker is held in abutment in the retracted position by an elastic means such as a spring or the like,
a locking member mounted transversely in the carcass or the breech of the weapon, and capable of locking the cylindrical seat in one or other of two positions thereof, corresponding to a central percussion or to a annular percussion.

Selon une première variante, l'assise cylindri­que présente un perçage transversal dont la partie centra­le débouche dans l'évidement cylindrique étagé de ladite assise, ledit perçage transversal servant à recevoir l'or­gane de butée du percuteur ; en particulier, l'organe de butée est une goupille passant dans une encoche du percu­teur.According to a first variant, the cylindrical seat has a transverse hole, the central part of which opens into the stepped cylindrical recess of said seat, said transverse hole serving to receive the stop member of the striker; in particular, the stop member is a pin passing through a notch of the striker.

Selon une autre variante, l'assise cylindrique présente une gorge périphérique dont une partie débouche dans l'évidement cylindrique étagé de ladite assise, la­dite gorge périphérique servant à recevoir l'organe de butée du percuteur. De préférence, l'organe de butée est un jonc élastique dont une portion passe dans une encoche du percuteur ; en particulier, le jonc élastique a sensi­blement la forme d'un fer à cheval, avec une branche cen­trale rectiligne passant das l'encoche du percuteur.According to another variant, the cylindrical seat has a peripheral groove, a part of which opens into the stepped cylindrical recess of said seat, said peripheral groove serving to receive the stop member of the striker. Preferably, the stop member is an elastic ring, a portion of which passes through a notch of the striker; in particular, the elastic rod has substantially the shape of a horseshoe, with a straight central branch passing through the notch of the striker.

Selon le cas, l'encoche du percuteur présente un fond se prolongeant jusqu'à l'extrémité arrière du percu­teur, ou un rebord arrière définissant un fond dont la longueur est légèrement supérieure à la course axiale du­dit percuteur. De préférence, le percuteur comporte un corps principal cylindrique se prolongeant vers l'avant vers une tige de percussion, l'encoche du percuteur étant ménagée sur ledit corps principal ; en particulier, un ressort entoure la portion de la tige de percussion du percuteur qui est à l'intérieur de la partie élargie de l'évidement cylindrique étagé de l'assise.Depending on the case, the striker notch has a bottom extending to the rear end of the striker, or a rear edge defining a bottom, the length is slightly greater than the axial stroke of said striker. Preferably, the striker comprises a cylindrical main body extending forward towards a percussion rod, the notch of the striker being formed on said main body; in particular, a spring surrounds the portion of the percussion rod of the striker which is inside the enlarged part of the stepped cylindrical recess of the seat.

Selon une caractéristique avantageuse, l'organe de verrouillage de l'assise cylindrique est une vis reçue dans un filetage traversant de la carcasse ou de la cu­lasse de l'arme, et dont l'extrémité est en appui contre l'assise pour le verrouillage de ladite assise dans l'une des deux positions de celle-ci. En particulier, l'assise cylindrique présente extérieurement deux facettes latéra­les planes, contre l'une ou l'autre desquelles peut s'ap­pliqueur la tête d'une vis à tête plate, ou encore deux évidements coniques, dans l'un ou l'autre desquels peut être reçue la tête d'une vis à pointeau.According to an advantageous characteristic, the locking member of the cylindrical seat is a screw received in a thread passing through the carcass or the breech of the weapon, and the end of which bears against the seat for locking of said seat in one of the two positions thereof. In particular, the cylindrical seat presents externally two flat lateral facets, against one or the other of which the head of a flat head screw can be applied, or even two conical recesses, in one or the other of which can be received the head of a needle screw.

De préférence, l'extrémité avant de l'assise cy­lindrique est un épaulement reçu dans un évidement circu­laire associé ménagé dans la carcasse ou la culasse de l'arme ; en particulier, l'épaulement présente deux enco­ches périphériques pour permettre d'opérer la rotation de l'assise cylindrique à l'aide d'un outil associé.Preferably, the front end of the cylindrical seat is a shoulder received in an associated circular recess formed in the carcass or the breech of the weapon; in particular, the shoulder has two peripheral notches to allow the rotation of the cylindrical seat using an associated tool.

D'une façon générale, il est intéressant de pré­voir que le passage pour l'assise cylindrique d'une posi­tion de percussion à l'autre se fait par une rotation de 180° de ladite assise autour de son axe.In general, it is advantageous to provide that the passage for the cylindrical seat from one percussion position to the other takes place by a 180 ° rotation of said seat around its axis.

D'autres caractéristiques et avantages de l'inven­tion apparaîtront plus clairement à la lumière de la des­cription qui va suivre et des dessins annexés, concernant un mode particulier de réalisation, en référence aux fi­gures pour lesquelles la lettre A indique que la représen­tation concerne un mode de percussion centrale, et la let­tre B indique que la représentation concerne un mode de percussion annulaire :

  • - la figure 1A est une vue en coupe partielle illustrant un dispositif de percussion commutable conforme à l'inven­tion, équipant un revolver,
  • - la figure 2A est une vue selon II de la figure 1A, dont on a enlevé le canon et son fourreau ainsi que le baril­let du revolver, afin de distinguer le côté épaulement du dispositif de percussion,
  • - la figure 3A est une coupe selon III-III de la figure 1A, dont on a enlevé la goupille transversale de butée et le percuteur coulissant, la coupe étant décalée pour passer par l'axe de la vis transversale de verrouillage,
  • - les figures 1B, 2B, 3B sont les vues correspondantes, après avoir fait tourner de 180° le dispositif de percus­sion pour passer en position de percussion annulaire,
  • - la figure 4A est une vue en coupe partielle illustrant une variante du dispositif de percussion de la figure 1A, dans laquelle d'une part la goupille transversale de bu­tée est remplacée par un jonc élastique, et d'autre part le verrouillage est assuré par une vis à pointeau,
  • - la figure 5A est une vue selon V de la figure 4A, analo­gue à la vue de la figure 2A,
  • - la figure 6A est une coupe selon VI-VI de la figure 4A,
  • - les figures 4B, 5B, 6B sont les vues correspondantes en position de percussion annulaire,
  • - la figure 7A est une vue en coupe partielle illustrant un dispositif de percussion commutable conforme à l'in­vention, équipant un pistolet,
  • - la figure 8A est une coupe selon VIII-VIII de la figure 7A, illustrant la culasse du revolver équipée de son dispositif de percussion, et ne nécessitant nullement d'être remplacée lors du changement du type de munitions utilisé,
  • - les figures 7B et 8B sont les vues correspondantes, après avoir fait tourner de 180° le dispositif de per­cussion pour passer en position de percussion annulaire.
Other characteristics and advantages of the invention will appear more clearly in the light of the description which follows and of the appended drawings, concerning a particular embodiment, with reference to the figures for which the letter A indicates that the representation relates to a mode of central percussion, and the letter B indicates that the representation relates to a mode of annular percussion:
  • FIG. 1A is a partial section view illustrating a switchable percussion device according to the invention, fitted to a revolver,
  • FIG. 2A is a view along II of FIG. 1A, from which the barrel and its sheath as well as the barrel of the revolver have been removed, in order to distinguish the shoulder side of the percussion device,
  • FIG. 3A is a section on III-III of FIG. 1A, from which the transverse stop pin and the sliding striker have been removed, the section being offset to pass through the axis of the transverse locking screw,
  • FIGS. 1B, 2B, 3B are the corresponding views, after having rotated the percussion device by 180 ° to pass into the annular percussion position,
  • - Figure 4A is a partial sectional view illustrating a variant of the percussion device of Figure 1A, in which on the one hand the transverse stop pin is replaced by an elastic ring, and on the other hand the locking is ensured by a needle screw,
  • FIG. 5A is a view along V of FIG. 4A, similar to the view of FIG. 2A,
  • FIG. 6A is a section on VI-VI of FIG. 4A,
  • FIGS. 4B, 5B, 6B are the corresponding views in the position of annular percussion,
  • FIG. 7A is a partial section view illustrating a switchable percussion device according to the invention, fitted to a gun,
  • FIG. 8A is a section along VIII-VIII of FIG. 7A, illustrating the breech of the revolver equipped with its percussion device, and not requiring in any way to be replaced when the type of ammunition used is changed,
  • - Figures 7B and 8B are the corresponding views, after having rotated the percussion device by 180 ° to pass into the annular percussion position.

Sur la vue en coupe partielle de la figure 1A, on distingue un revolver comportant une carcasse 1, un manchon ou fourreau 2, et un canon 3 dont l'extrémité ar­rière se visse sur la carcasse 1. Il s'agit ici d'un re­volver du type à canon interchangeable, c'est-à-dire pour lequel il est prévu un jeu de plusieurs canons et fourreaux associés permettant de modifier le calibre et/ou la lon­gueur du canon, mais il va de soi que l'invention n'est nullement limitée à ce type d'arme à feu ainsi que cela apparaîtra clairement du restant de la description. Le revolver est équipé d'un barillet 4 dont les chambres axia­les 5 reçoivent des munitions telles que la balle 6 du type à percussion centrale ; il pourra s'agir par exemple de munitions de calibre 7,65 mm ou 9 mm. Lorsque l'on souhaite utiliser ce revolver avec des munitions à per­cussion annulaire, le canon 3 est remplacé par un canon 3ʹ adapté au calibre de cette nouvelle munition, de même pour le barillet qui est remplacé par un barillet 4ʹ dont les chambres 5ʹ peuvent recevoir une munition 6ʹ, telle par exemple qu'une munition de calibre 22 Long Rifle (environ 5,5 mm). Il va de soi que l'on pourrait utiliser un tube réducteur (non représenté ici) enfilé à l'intérieur du canon s'il s'agit d'un revolver qui n'est pas du type à canon interchageable. Le revolver ainsi équipé du canon 3ʹ et du barillet 4ʹ est illustré en figure 1B.In the partial section view of FIG. 1A, there is a revolver comprising a carcass 1, a sleeve or sheath 2, and a barrel 3, the rear end of which is screwed onto the carcass 1. This is a revolver of the interchangeable barrel type, that is to say one for which a set of several barrels and associated barrels is provided making it possible to modify the caliber and / or the length of the barrel, but it goes without saying that the invention does is by no means limited to this type of firearm as will become clear from the remainder of the description. The revolver is equipped with a barrel 4, the axial chambers 5 of which receive ammunition such as the bullet 6 of the central percussion type; it could for example be ammunition of 7.65 mm or 9 mm caliber. When it is desired to use this revolver with ammunition with annular percussion, the barrel 3 is replaced by a barrel 3ʹ adapted to the caliber of this new ammunition, likewise for the barrel which is replaced by a barrel 4ʹ whose chambers 5ʹ can receive 6ʹ ammunition, such as a 22 caliber Long Rifle ammunition (about 5.5 mm). It goes without saying that one could use a reduction tube (not shown here) threaded inside the barrel if it is a revolver which is not of the interchangeable barrel type. The revolver thus equipped with the barrel 3ʹ and the barrel 4ʹ is illustrated in FIG. 1B.

La description va maintenant porter sur le dispo­sitif de percussion proprement dit, lequel permet de s'a­dapter à deux munitions de calibre différent, dont l'une est à percussion centrale (munition 6, figure 1A) et l'au­tre est à percussion annulaire (munition 6ʹ, figure 1B).The description will now relate to the percussion device proper, which makes it possible to adapt to two munitions of different caliber, one of which is with central percussion (munition 6, FIG. 1A) and the other is with annular percussion ( 6ʹ ammunition, Figure 1B).

On distingue ainsi une assise cylindrique 7 montée tournante dans un alésage 8 de la carcasse 1, et dont l'axe de rotation 9 est parallèle à l'axe 10 du canon du revolver. Le dispositif de percussion comporte également un percuteur 11 pouvant coulisser dans un évidement cylindrique étagé 12 de l'assise 7 ; l'axe 13 du percuteur 11 est parallèle à l'axe de rotation 9 de l'assise cylindrique, mais il est décalé par rapport à celui-ci. Le percuteur 11 comporte un corps principal cylindrique 14 se prolongeant vers l'avant par une tige de percussion 15. Il est prévu un organe de butée,qui est ici une goupille cylindrique 16 montée trans­versalement dans l'assise cylindrique 7, organe de butée contre lequel le percuteur 11 est maintenu en appui en po­sition rétractée (celle représentée sur les figures 1A et 1B) par un moyen élastique tel qu'un ressort 17. La goupil­le 16 est logée dans un perçage transversal 18 dont la partie centrale débouche dans l'évidement cylindrique étagé 12 de l'assise 7, ainsi que cela est mieux visible sur le détail de la figure 3A. La goupille 16 passe dans une en­coche 19 du percuteur 11, ladite encoche présentant ici un fond se prolongeant jusqu'à l'extrémité arrière du per­cuteur. Il va de soi que l'on pourrait prévoir une encoche présentant un rebord arrière définissant un fond dont la longueur est légèrement supérieure à la course axiale du percuteur mais, compte tenu de l'encombrement résultant de la goupille cylindrique de butée 16, il est plus simple de prévoir un fond d'encoche débouchant à la façon d'un méplat, ainsi que cela est illustré aux figures 1A et 1B. Ainsi, le percuteur 11 est, dans sa position naturelle, en appui contre la goupille 16 ; au moment de la percussion, le per­cuteur quitte son appui, et la tige de percussion 15 frap­pe le culot de la munition en saillant de la face avant de l'assise cylindrique 7.There is thus a cylindrical seat 7 rotatably mounted in a bore 8 of the carcass 1, and whose axis of rotation 9 is parallel to the axis 10 of the barrel of the revolver. The percussion device also includes a striker 11 capable of sliding in a stepped cylindrical recess 12 of the seat 7; the axis 13 of the striker 11 is parallel to the axis of rotation 9 of the cylindrical seat, but it is offset with respect thereto. The striker 11 comprises a cylindrical main body 14 extending forwardly by a percussion rod 15. There is provided a stop member, which is here a cylindrical pin 16 mounted transversely in the cylindrical seat 7, stop member against which the striker 11 is held in abutment in the retracted position (that shown in FIGS. 1A and 1B) by an elastic means such as a spring 17. The pin 16 is housed in a transverse hole 18, the central part of which opens into the stepped cylindrical recess 12 of the seat 7, as is better visible in the detail of FIG. 3A. The pin 16 passes through a notch 19 of the striker 11, said notch having here a bottom extending to the rear end of the striker. It goes without saying that one could provide a notch having a rear edge defining a bottom whose length is slightly greater than the axial stroke of the striker but, taking into account the space resulting from the cylindrical stop pin 16, it is simpler to provide a notch bottom opening in the manner of a flat, as shown in Figures 1A and 1B. So, the striker 11 is, in its natural position, in abutment against the pin 16; at the time of percussion, the striker leaves its support, and the percussion rod 15 strikes the base of the ammunition projecting from the front face of the cylindrical seat 7.

L'assise du dispositif de percussion peut occuper deux positions de base, l'une étant affectée à la percus­sion centrale (figure 1A), tandis que l'autre est affectée à la percussion annulaire (figure 1B). On passe de l'une à l'autre de ces deux positions en faisant tout simplement tourner l'assise 7 autour de son axe 9, de préférence se­lon un angle de 180°. Il est naturellement nécessaire de prévoir un organe de verrouillage permettant de verrouiller convenablement l'assise cylindrique 7 dans l'une ou l'autre de ces deux positions. Ainsi que cela est visible sur les figures 3A et 3B, l'assise cylindrique 7 présente extérieu­rement deux facettes latérales planes 20, contre l'une ou l'autre desquelles peut s'appliquer la tête d'une vis à tête plate 21. Ainsi, pour passer d'une position de per­cussion à l'autre, il suffit de dévisser la vis 21, et de tourner l'assise 7 de 180° pour que le percuteur 11 soit instantanément en position de percussion centrale ou en position de percussion annulaire. Ainsi que cela est visi­ble sur les figures 1A et 1B, l'extrémité avant de l'assise cylindrique 7 se présente sous la forme d'un épaulement 22 reçu dans un évidement circulaire associé ménagé dans la carcasse 1 de l'arme. Il est alors intéressant de prévoir que l'épaulement 22 présente deux encoches périphériques 23, seulement visibles sur les figures 2A et 2B, pour per­mettre d'opérer la rotation de l'assise cylindrique 7 à l'aide d'un outil associé,tel qu'une clef à ergots.The seat of the percussion device can occupy two basic positions, one being assigned to central percussion (Figure 1A), while the other is assigned to annular percussion (Figure 1B). We pass from one to the other of these two positions by simply rotating the seat 7 around its axis 9, preferably at an angle of 180 °. It is naturally necessary to provide a locking member making it possible to properly lock the cylindrical seat 7 in one or the other of these two positions. As can be seen in FIGS. 3A and 3B, the cylindrical seat 7 has two planar lateral facets 20 on the outside, against one or the other of which can be applied the head of a flat head screw 21. Thus , to move from one percussion position to another, simply unscrew the screw 21, and turn the seat 7 by 180 ° so that the striker 11 is instantly in the central percussion position or in the annular percussion position . As can be seen in FIGS. 1A and 1B, the front end of the cylindrical seat 7 is in the form of a shoulder 22 received in an associated circular recess formed in the carcass 1 of the weapon. It is then interesting to provide that the shoulder 22 has two peripheral notches 23, only visible in FIGS. 2A and 2B, to allow the rotation of the cylindrical seat 7 using an associated tool, such as than a lug wrench.

Ainsi, lorsque l'utilisateur veut passer d'un mode de percussion centrale à un mode de percussion annu­laire, il commence par démonter le barillet et le canon, ce qui donne accès à la face avant du dispositif de per­cussion, et plus particulièrement aux ergots de l'épaule­ment de l'assise cylindrique. Il dévisse alors la vis 21, puis fait tourner l'assise cylindrique 7 de 180°, et res­serre la vis 21 lorsque l'assise cylindrique est dans sa nouvelle position correspondant à celle illustrée aux fi­gures 1B, 2B, 3B. Il lui suffit alors de remonter un ba­rillet et un canon correspondant au nouveau calibre, et le revolver est prêt pour sa nouvelle utilisation.Thus, when the user wants to switch from a central percussion mode to an annular percussion mode, he begins by dismantling the barrel and the barrel, which gives access to the front face of the percussion device, and more particularly to the pins of the shoulder of the cylindrical seat. He then unscrews the screw 21, then rotates the cylindrical seat 7 by 180 °, and tightens the screw 21 when the cylindrical seat is in its new position corresponding to that illustrated in FIGS. 1B, 2B, 3B. It then suffices to reassemble a barrel and a barrel corresponding to the new caliber, and the revolver is ready for its new use.

Il vas de soi que diverses modifications peuvent être apportées aux composants du dispositif de percussion de l'invention, et en particulier à l'organe de butée contre lequel le percuteur est maintenu en appui, ainsi qu'à l'organe de verrouillage permettant de bloquer l'as­sise cylindrique dans une position prédéterminée. Les fi­gures 4A, 5A et 6A illustrent de telles variantes possibles. Le dispositif de percussion comporte ainsi une assise cy­lindrique 24 se différenciant de l'assise 7 en ce qu'elle comporte une gorge périphérique 25 dont une partie débouche dans l'évidement cylindrique étagé 30 de ladite assise, la­dite gorge périphérique servant à recevoir l'organe de butée 26 du percuteur, lequel est ici un jonc élastique dont une portion centrale passe dans une encoche 27 du percuteur 28. Ainsi que cela est mieux visible sur la figure 6A, le jonc élastique 26 a sensiblement la forme d'un fer à cheval, avec une branche centrale 29 rectiligne passant dans l'en­coche 27 du percuteur 28. On notera qu'ici l'encoche 27 du percuteur 28 présente un rebord arrière 31 (figure 6A) dé­finissant un fond d'encoche dont la longueur est légèrement supérieure à la course axiale dudit percuteur. Comme pré­cédemment, le percuteur 28 comporte un corps principal 32 cylindrique, se prolongeant vers l'avant par une tige de percussion 33, l'encoche 27 dudit percuteur étant ménagée sur ledit corps principal.It goes without saying that various modifications can be made to the components of the percussion device of the invention, and in particular to the stop member against which the striker is held in abutment, as well as to the locking member making it possible to lock the cylindrical seat in a predetermined position. FIGS. 4A, 5A and 6A illustrate such possible variants. The percussion device thus comprises a cylindrical seat 24 which differs from the seat 7 in that it comprises a peripheral groove 25, a part of which opens into the stepped cylindrical recess 30 of said seat, said peripheral groove serving to receive the abutment member 26 of the striker, which here is an elastic rod, a central portion of which passes through a notch 27 of the striker 28. As is better visible in FIG. 6A, the elastic rod 26 has substantially the shape of an iron horse, with a straight central branch 29 passing through the notch 27 of the striker 28. It will be noted that here the notch 27 of the striker 28 has a rear edge 31 (FIG. 6A) defining a bottom of notch whose length is slightly greater than the axial stroke of said striker. As before, the striker 28 comprises a main body 32 cylindrical, extending forwardly by a percussion rod 33, the notch 27 of said striker being formed on said main body.

Ainsi que cela est visible sur la figure 5A, l'as­sise cylindrique 24 présente extérieurement deux évidements coniques 34 (un seul représenté ici), dans l'un ou l'autre desquels peut être reçue la tête d'une vis à pointeau 35.Il est préférable que ces cônes de réception soient prévus suf­fisamment éloignés de la gorge recevant le jonc élastique, par exemple vers le milieu de l'assise cylindrique. Une telle variante permet d'éviter l'usinage de facettes laté­rales sur l'assise cylindrique.As can be seen in FIG. 5A, the cylindrical seat 24 has two conical recesses 34 on the outside (only one shown here), in one or the other of which can be received the head of a needle screw 35. It is preferable that these reception cones are provided sufficiently distant from the groove receiving the elastic ring, for example towards the middle of the cylindrical seat. Such a variant makes it possible to avoid the machining of lateral facets on the cylindrical seat.

Les figures 4A, 5A et 6A illustrent un revolver dont le dispositif de percussion est en position corres­pondant à une percussion centrale. Comme précédemment, et ainsi qu'illustré aux figures 4B, 5B et 6B, l'opérateur pourra passer en percussion annulaire en démontant le ba­rillet et le canon, en dévissant la vis à pointeau 35, en tournant l'assise cylindrique 24 de 180° au moyen d'une clef à ergots, en revissant la vis 35, et enfin en remon­tant le barillet et le canon correspondant au nouveau ca­libre.FIGS. 4A, 5A and 6A illustrate a revolver whose percussion device is in position corresponding to a central percussion. As before, and as illustrated in FIGS. 4B, 5B and 6B, the operator can switch to annular percussion by dismantling the barrel and the barrel, by unscrewing the needle screw 35, by turning the cylindrical seat 24 by 180 °. by means of a lug wrench, by tightening the screw 35, and finally by reassembling the barrel and the barrel corresponding to the new caliber.

Ainsi que cela a été dit plus haut, l'invention s'applique aux armes à canon interchangeable ou utilisant des tubes réducteurs, mais n'est nullement limitée aux revolvers à barillet. Le dispositif de percussion de l'in­vention trouve en effet une application extrêmement avan­tageuse dans l'équipement des pistolets, ainsi que cela va être décrit en regard des figures 7A et 8A, et 7B et 8B.As has been said above, the invention applies to weapons with interchangeable barrel or using reducing tubes, but is in no way limited to barrel revolvers. The percussion device of the invention finds an extremely advantageous application in the equipment of pistols, as will be described with reference to FIGS. 7A and 8A, and 7B and 8B.

On distingue ainsi une culasse 36 de pistolet, avec en partie avant une carcasse 37 à l'intérieur de la­quelle est disposé le canon 38 adapté pour une munition à percussion centrale 39. Comme précédemment, il est éga­lement prévu une assise cylindrique 40 montée tournante dans un alésage 41 de la culasse du pistolet et dont l'axe de rotation 42 est parallèle à l'axe du canon dudit pisto­let On trouve également un percuteur 43 pouvant coulisser dans un évidement cylindrique étagé 44 de l'assise cylin­drique 40, dont l'axe 45 est parallèle à l'axe de rotation 42 de ladite assise mais décalé par rapport à celui-ci. Il est aussi prévu un organe de butée 46, ici analogue à la goupille 16 précédemment décrite, monté transversalement dans l'assise cylindrique 40, et contre lequel le percuteur 43 est maintenu en appui en position rétractée par un res­sort 47. On trouve enfin un organe de verrouillage 48 mon­té transversalement dans la culasse de l'arme, et suscep­tible de verrouiller l'assise cylindrique 40 dans l'une ou l'autre de deux positions de celles-ci, correspondant à une percussion centrale ou à une percussion annulaire. l'organe 48 est ici une vis à pointeau coopérant avec des évidements coniques ménagés sur la surface extérieure de l'assise cylindrique 40, mais il va de soi que l'on pour­rait prévoir une vis à tête plate coopérant avec l'une ou l'autre de deux facettes latérales planes ménagées ex­térieurement sur l'assise cylindrique. De même, le corps principal du percuteur 43 présente une encoche 49 dans la­quelle passe la goupille transversale 46, laquelle encoche présente un rebord arrière définissant un fond dont la lon­gueur est légèrement supérieure à la course axiale dudit percuteur. Il va de soi que l'on pourrait également prévoir une encoche présentant un fond se prolongeant jusqu'à l'ex­trémité arrière du percuteur, ainsi qu'illustré aux figures 1A et 1B, mais il est préférable d'utiliser une encoche non débouchante pour une meilleure étanchéité et une meil­leure résistance mécanique de la pièce, sachant que le per­cuteur est,pour un pistolet, notablement plus allongé que pour un revolver.There is thus a pistol breech 36, with a carcass 37 at the front part inside which is disposed the barrel 38 adapted for ammunition with central percussion 39. As previously, there is also provided a cylindrical seat 40 rotatably mounted in a bore 41 of the breech of the pistol and whose axis of rotation 42 is parallel to the axis of the barrel of said pistol There is also a striker 43 which can slide in a stepped cylindrical recess 44 of the cylindrical seat 40, the axis 45 of which is parallel to the axis of rotation 42 of said seat but offset with respect thereto. There is also a stop member 46, here analogous to the pin 16 previously described, mounted transversely in the cylindrical seat 40, and against which the striker 43 is held in abutment in the retracted position by a spring 47. Finally, there is a locking member 48 mounted transversely in the breech of the weapon, and capable of locking the cylindrical seat 40 in one or the other of two positions thereof, corresponding to a central percussion or to an annular percussion. the member 48 is here a needle screw cooperating with conical recesses formed on the outer surface of the cylindrical seat 40, but it goes without saying that one could provide a flat head screw cooperating with one or the other. 'other of two flat side facets formed externally on the cylindrical seat. Similarly, the main body of the striker 43 has a notch 49 through which the transverse pin 46 passes, which notch has a rear edge defining a bottom whose length is slightly greater than the axial stroke of said striker. It goes without saying that one could also provide a notch having a bottom extending to the rear end of the striker, as illustrated in FIGS. 1A and 1B, but it is preferable to use a non-opening notch for better sealing and better mechanical resistance of the part, knowing that the striker is, for a pistol, significantly longer than for a revolver.

Lorsque l'opérateur désire passe en percussion annulaire, il lui suffit de changer le canon en disposant dans la carcasse 37 un nouveau canon 38ʹ adapté au calibre d'une munition 39ʹ à percussion annulaire, après avoir tourné de 180° l'assise cylindrique 40 du dispositif de percussion, comme illustré aux figures 7B et 8B. On peut ainsi remarquer qu'il devient inutile de changer la culasse 36 du pistolet, ce qui représente un progrès notable par rapport aux techniques existantes.When the operator wishes to switch to annular percussion, he just has to change the barrel by placing in the carcass 37 a new barrel 38ʹ adapted to the caliber of a munition 39ʹ with annular percussion, after having turned the cylindrical seat 40 °. of the percussion device, as illustrated in FIGS. 7B and 8B. It can thus be noted that it becomes useless to change the breech 36 of the pistol, which represents a significant progress compared to existing techniques.

Il va de soi que l'invention n'est nullement li­mitée aux modes de réalisation qui viennent d'être décrits, mais englobe au contraire toute variante reprenant, avec des moyens équivalents, les caractéristiques essentielles figurant aux revendications.It goes without saying that the invention is in no way limited to the embodiments which have just been described, but on the contrary encompasses any variant incorporating, with equivalent means, the essential characteristics appearing in the claims.

Claims (16)

1. Dispositif de percussion pour arme à feu, en particulier pour revolver ou pistolet, permettant de s'a­dapter à deux munitions de calibres différents, dont l'une et à percussion centrale et l'autre est à percussion an­nulaire, caractérisé par le fait qu'il comporte :
- une assise cylindrique (7, 24 ; 40) montée tournante dans un alésage (8 ; 41) de la carcasse (1) ou de la cu­lasse (36) de l'arme, et dont l'axe de rotation (9 ; 42) est parallèle à l'axe du canon de ladite arme ;
- un percuteur (11, 28 ; 43) pouvant coulisser dans un évidement cylindrique étagé (12, 30 ; 44) de l'assise cylindrique (7, 24 ; 40), dont l'axe (13 ; 45) est paral­lèle à l'axe de rotation (9 ; 42) de ladite assise cylin­drique mais décalé par rapport à celui-ci ;
- un organe de butée (16, 26 ; 46) monté transversalement dans l'assise cylindrique (7, 24 ; 40), et contre lequel le percuteur (11, 28 ; 43) est maintenu en appui en posi­tion rétractée par un moyen élastique (17 ; 47) tel que ressort ou analogue ;
- un organe de verrouillage (21, 35 ; 48) monté transversa­lement dans la carcasse (1) ou la culasse (36) de l'arme, et susceptible de verrouiller l'assise cylindrique (7, 24 ; 40) dans l'une ou l'autre de deux position de celle-­ci, correspondant à une percussion centrale ou à une per­cussion annulaire.1. Percussion device for a firearm, in particular for a revolver or pistol, making it possible to adapt to two ammunitions of different calibers, one of which has central percussion and the other is of annular percussion, characterized by the fact that it includes:
- a cylindrical seat (7, 24; 40) rotatably mounted in a bore (8; 41) of the carcass (1) or of the breech (36) of the weapon, and whose axis of rotation (9; 42 ) is parallel to the axis of the barrel of said weapon;
- a striker (11, 28; 43) which can slide in a stepped cylindrical recess (12, 30; 44) of the cylindrical seat (7, 24; 40), whose axis (13; 45) is parallel to the 'axis of rotation (9; 42) of said cylindrical seat but offset with respect thereto;
- a stop member (16, 26; 46) mounted transversely in the cylindrical seat (7, 24; 40), and against which the striker (11, 28; 43) is held in abutment in the retracted position by elastic means (17; 47) as spring or the like;
- a locking member (21, 35; 48) mounted transversely in the carcass (1) or the breech (36) of the weapon, and capable of locking the cylindrical seat (7, 24; 40) in one or the other of two positions thereof, corresponding to a central percussion or an annular percussion. 2. Dispositif de percussion selon la revendication 1, caractérisé par le fait que l'assise cylindrique (7 ; 40) présente un perçage transversal dont la partie centrale débouche dans l'évidement cylindrique étagé (12 ; 44) de ladite assise, ledit perçage transversal servant à recevoir l'organe de butée (16 ; 46) du percuteur.2. Percussion device according to claim 1, characterized in that the cylindrical seat (7; 40) has a transverse bore, the central part of which opens into the stepped cylindrical recess (12; 44) of said seat, said bore transverse serving to receive the stop member (16; 46) of the striker. 3. Dispositif de percussion selon la revendication 2, caractérisé par le fait que l'organe de butée est une goupille (16 ; 46) passant dans une encoche (19 ; 49) du percuteur (11 ; 43).3. Percussion device according to claim 2, characterized in that the stop member is a pin (16; 46) passing through a notch (19; 49) of the striker (11; 43). 4. Dispositif de percussion selon la revendication 1, caractérisé par le fait que l'assise cylindrique (24) présente une gorge périphérique (25) dont une partie dé­bouche dans l'évidement cylindrique étagé (30) de ladite assise, ladite gorge périphérique servant à recevoir l'or­gane de butée (26) du percuteur (28).4. Percussion device according to claim 1, characterized in that the cylindrical seat (24) has a peripheral groove (25) of which a part opens into the stepped cylindrical recess (30) of said seat, said peripheral groove serving receiving the stop member (26) of the striker (28). 5. Dispositif de percussion selon la revendication 4, caractérisé par le fait que l'organe de butée est un jonc élastique (26) dont une portion passe dans une encoche (27) du percuteur (28).5. Percussion device according to claim 4, characterized in that the abutment member is an elastic ring (26), a portion of which passes through a notch (27) of the striker (28). 6. Dispositif de percussion selon la revendication 5, caractérisé par le fait que le jonc élastique (26) a sensiblement la forme d'un fer à cheval, avec une branche centrale (29) rectiligne passant dans l'encoche (27) du percuteur (28).6. Percussion device according to claim 5, characterized in that the elastic rod (26) has substantially the shape of a horseshoe, with a straight central branch (29) passing through the notch (27) of the striker (28). 7. Dispositif de percussion selon l'une des reven­dications 3 et 5, caractérisé par le fait que l'encoche (19) du percuteur (11) présente un fond se prolongeant jusqu'à l'extrémité arrière du percuteur.7. Percussion device according to one of claims 3 and 5, characterized in that the notch (19) of the striker (11) has a bottom extending to the rear end of the striker. 8. Dispositif de percussion selon l'une des reven­dications 3 et 5, caractérisé par le fait que l'encoche (27 ; 49) du percuteur (28 ; 43) présente un rebord arrière définissant un fond dont la longueur est légèrement supé­rieure à la course axiale dudit percuteur.8. Percussion device according to one of claims 3 and 5, characterized in that the notch (27; 49) of the striker (28; 43) has a rear flange defining a bottom whose length is slightly greater than the axial stroke of said striker. 9. Dispositif de percussion selon l'une des reven­dications 7 et 8, caractérisé par le fait que le percuteur (11, 28 ; 43) comporte un corps principal cylindrique (14, 32) se prolongeant vers l'avant par une tige de percussion (15, 33), l'encoche (19, 27) du percuteur étant ménagée sur ledit corps principal.9. Percussion device according to one of claims 7 and 8, characterized in that the striker (11, 28; 43) comprises a main cylindrical body (14, 32) extending forwardly by a percussion rod (15, 33), the notch (19, 27) of the striker being formed on said main body. 10. Dispositif de percussion selon la revendication 9, caractérisé par le fait que un ressort (17 ; 47) entoure la portion de la tige de percussion (15, 33) du percuteur qui est à l'intérieur de la partie élargie de l'évidement cylindrique étagé (12, 30 ; 44) de l'assise (7, 24 ; 40).10. Percussion device according to claim 9, characterized in that a spring (17; 47) surrounds the portion of the percussion rod (15, 33) of the striker which is inside the enlarged part of the stepped cylindrical recess (12, 30; 44) of the seat (7, 24; 40). 11. Dispositif de percussion selon l'une des reven­dications 1 à 10, caractérisé par le fait que l'organe de verrouillage de l'assise cylindrique (7, 24 ; 40) est une vis (21, 35 ; 48) reçue dans un filetage traversant de la carcasse (1) ou de la culasse (36) de l'arme, et dont l'ex­trémité est en appui contre l'assise (7, 24 ; 40) pour le verrouillage de ladite assise dans l'une des deux positions de celle-ci.11. Percussion device according to one of claims 1 to 10, characterized in that the locking member of the cylindrical seat (7, 24; 40) is a screw (21, 35; 48) received in a thread passing through the carcass (1) or the breech (36) of the weapon, and the end of which bears against the seat (7, 24; 40) for locking said seat in one of the two positions of it. 12. Dispositif de percussion selon la revendication 11, caractérisé par le fait que l'assise cylindrique (7) présente extérieurement deux facettes latérales planes (20) contre l'une ou l'autre desquelles peut s'appliquer la tête d'une vis à tête plate (21).12. Percussion device according to claim 11, characterized in that the cylindrical seat (7) has externally two flat side facets (20) against one or the other of which can be applied the head of a screw with flat head (21). 13. Dispositif de percussion selon la revendication 11, caractérisé par le fait que l'assise cylindrique (24 ; 40) présente extérieurement deux évidements coniques, dans l'un ou l'ature desquels peut être reçue la tête d'une vis à pointeau (35 ; 48).13. Percussion device according to claim 11, characterized in that the cylindrical seat (24; 40) has externally two conical recesses, in one or the frame of which can be received the head of a needle screw (35; 48). 14. Dispositif de percussion selon l'une des reven­dications 1 à 13, caractérisé par le fait que l'extrémité avant de l'assise cylindrique (7, 24 ; 40) est un épaule­ment (22) reçu dans un évidement circulaire associé ménagé dans la carcasse (1) ou la culasse (36) de l'arme.14. Percussion device according to one of claims 1 to 13, characterized in that the front end of the cylindrical seat (7, 24; 40) is a shoulder (22) received in an associated circular recess formed in the carcass (1) or the breech (36) of the weapon. 15. Dispositif de percussion selon la revendication 14, caractérisé par le fait que l'épaulement (22) présente deux encoches périphériques (23) pour permettre d'opérer la rotation de l'assise cylindrique (7, 24 ; 40) à l'aide d'un outil associé.15. Percussion device according to claim 14, characterized in that the shoulder (22) has two peripheral notches (23) to allow the rotation of the cylindrical seat (7, 24; 40) to be using an associated tool. 16. Dispositif de percussion selon l'une des reven­dications 1 à 15, caractérisé par le fait que le passage pour l'assise cylindrique (7, 24 ; 40) d'une position de percussion à l'autre se fait par une rotation de 180° de ladite assise autour de son axe (9 ; 42).16. Percussion device according to one of claims 1 to 15, characterized in that the passage for the cylindrical seat (7, 24; 40) from one percussion position to the other is effected by a rotation of 180 ° of said seat around its axis (9; 42).
EP88400023A 1987-01-09 1988-01-06 Firearm percussion device for firing cartridges of two different calibres Expired - Lifetime EP0278795B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400023T ATE62544T1 (en) 1987-01-09 1988-01-06 FIRING PIN ASSEMBLY FOR FIREARMS FOR FIRING TWO CARTRIDGES OF DIFFERENT CALIBER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8700158A FR2609538A1 (en) 1987-01-09 1987-01-09 PERCUSSION DEVICE FOR A FIREARM, FOR ADAPTING TO TWO AMMUNITIONS OF DIFFERENT SIZES
FR8700158 1987-01-09

Publications (2)

Publication Number Publication Date
EP0278795A1 true EP0278795A1 (en) 1988-08-17
EP0278795B1 EP0278795B1 (en) 1991-04-10

Family

ID=9346773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88400023A Expired - Lifetime EP0278795B1 (en) 1987-01-09 1988-01-06 Firearm percussion device for firing cartridges of two different calibres

Country Status (4)

Country Link
EP (1) EP0278795B1 (en)
AT (1) ATE62544T1 (en)
DE (1) DE3862311D1 (en)
FR (1) FR2609538A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009057864A1 (en) * 2009-12-11 2011-06-16 German Sport Guns Gmbh Handgun
US8312659B2 (en) 2009-11-12 2012-11-20 German Sport Guns Gmbh Hand gun

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT6433U1 (en) 1998-07-14 2003-10-27 Steyr Daimler Puch Ag GUN WITH SLIDE
DE19903323B4 (en) 1999-01-28 2005-09-08 Heckler & Koch Gmbh Firing pin holder on a lock for a handgun

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE298815C (en) *
US1373888A (en) * 1920-05-22 1921-04-05 Winchester Repeating Arms Co Takedown gun
DE518372C (en) * 1929-03-02 1931-02-14 Simson & Co Self-loading pistol
US1849982A (en) * 1931-05-07 1932-03-15 Ithaca Gun Co Mechanism for firearms
US2127318A (en) * 1936-11-27 1938-08-16 Charles A Young Gun
US3049977A (en) * 1960-06-13 1962-08-21 Robert J Reich Automatic action revolver
US3050894A (en) * 1960-03-18 1962-08-28 Jessie T Ivy Rotatably adjustable firing pin for center or rim fire cartridges
US3170261A (en) * 1963-09-23 1965-02-23 Ludovici Luigi Revolving firearm
CH534854A (en) * 1971-07-31 1973-03-15 Heckler & Koch Gmbh Closure for a handgun

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE298815C (en) *
US1373888A (en) * 1920-05-22 1921-04-05 Winchester Repeating Arms Co Takedown gun
DE518372C (en) * 1929-03-02 1931-02-14 Simson & Co Self-loading pistol
US1849982A (en) * 1931-05-07 1932-03-15 Ithaca Gun Co Mechanism for firearms
US2127318A (en) * 1936-11-27 1938-08-16 Charles A Young Gun
US3050894A (en) * 1960-03-18 1962-08-28 Jessie T Ivy Rotatably adjustable firing pin for center or rim fire cartridges
US3049977A (en) * 1960-06-13 1962-08-21 Robert J Reich Automatic action revolver
US3170261A (en) * 1963-09-23 1965-02-23 Ludovici Luigi Revolving firearm
CH534854A (en) * 1971-07-31 1973-03-15 Heckler & Koch Gmbh Closure for a handgun

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8312659B2 (en) 2009-11-12 2012-11-20 German Sport Guns Gmbh Hand gun
DE102009057864A1 (en) * 2009-12-11 2011-06-16 German Sport Guns Gmbh Handgun
DE102009057864B4 (en) * 2009-12-11 2012-09-20 German Sport Guns Gmbh Handgun
US8381425B2 (en) 2009-12-11 2013-02-26 German Sport Guns Gmbh Hand gun
US8689476B2 (en) 2009-12-11 2014-04-08 German Sport Guns Gmbh Hand gun

Also Published As

Publication number Publication date
FR2609538A1 (en) 1988-07-15
EP0278795B1 (en) 1991-04-10
ATE62544T1 (en) 1991-04-15
DE3862311D1 (en) 1991-05-16

Similar Documents

Publication Publication Date Title
BE1008220A3 (en) MACHINE GUN.
FR2547038A1 (en) SUPPLY DEVICE FOR SEMI-AUTOMATIC COMPRESSED GAS APPARATUS FOR PROJECTILES
EP0064420B1 (en) Insertion barrel for fire-arms
EP0278795B1 (en) Firearm percussion device for firing cartridges of two different calibres
FR2738059A1 (en) MORTAR WITH A CULASSE DISPOSED AT THE BACK
EP1304538A1 (en) Mounting of a sighting device on firearms
EP0218489B1 (en) Large calibre double-barrel breakdown gun
FR3104250A1 (en) Rebound resistance adjustment mechanism
FR2487062A1 (en) REVOLVER PERFECTIONNE
US7263795B1 (en) Extractor for a revolver
FR2670573A1 (en) PIERCING SYSTEM FOR FIREARMS.
FR2736711A1 (en) Drum revolver with unrotatable drum part
BE1015572A3 (en) Semi-automatic weapon such as carbine has reloading gas cylinder controlled by regulating screw with portion having same section as cylinder chamber
WO1998027399A1 (en) Short gun with barrel in the extension of the stock
EP1072857A1 (en) Guidance system for the recoiling mass of an artillery gun
FR3043767A1 (en) RIFLE WITH LINEAR LOCKING HEAD
FR2660426A1 (en) DEVICE FOR ATTACHING SILENCERS OR OTHER ACCESSORIES TO A CANNON GUN.
FR2609539A1 (en) Firearm with interchangeable barrel, such as a revolver, and associated foresight carrier
FR2465182A1 (en) Sub-calibre tube for firearm - has central firing pin chamber inclined to bore with curved connection to it
EP0251935A1 (en) Drum-type firearm and associated drum
WO2016170260A1 (en) Firearm comprising a skeleton frame designed to accept a cartridge acting as a gun barrel
BE508018A (en)
CH476964A (en) Bolt for automatic or semi-automatic weapon
FR3017702A1 (en) RIFLE WITH TWO GUNS JUXTAPOSES
BE858421R (en) ADVANCED HUNTING WEAPON

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19881024

17Q First examination report despatched

Effective date: 19890712

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19910410

Ref country code: AT

Effective date: 19910410

Ref country code: GB

Effective date: 19910410

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19910410

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19910410

Ref country code: NL

Effective date: 19910410

Ref country code: SE

Effective date: 19910410

REF Corresponds to:

Ref document number: 62544

Country of ref document: AT

Date of ref document: 19910415

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3862311

Country of ref document: DE

Date of ref document: 19910516

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19920131

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19920131

Ref country code: LI

Effective date: 19920131

Ref country code: BE

Effective date: 19920131

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: MATRA MANURHIN DEFENSE

Effective date: 19920131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920930

REG Reference to a national code

Ref country code: CH

Ref legal event code: AUV

Free format text: LE BREVET CI-DESSUS EST TOMBE EN DECHEANCE , FAUTE DE PAIEMENT, DE LA 5E ANNUITE.

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19921001

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST